diff options
Diffstat (limited to 'llvm/lib/Target/X86/X86InstrInfo.td')
| -rw-r--r-- | llvm/lib/Target/X86/X86InstrInfo.td | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/llvm/lib/Target/X86/X86InstrInfo.td b/llvm/lib/Target/X86/X86InstrInfo.td index ab9869abc5c..f5463c0d6ab 100644 --- a/llvm/lib/Target/X86/X86InstrInfo.td +++ b/llvm/lib/Target/X86/X86InstrInfo.td @@ -1259,6 +1259,10 @@ include "X86InstrCompiler.td" //===----------------------------------------------------------------------===// // movsx aliases +def : InstAlias<(outs GR16:$dst), (ins GR8 :$src), + "movsx $src, $dst", + (MOVSX16rr8W GR16:$dst, GR8:$src)>; + def : InstAlias<(outs GR32:$dst), (ins GR8 :$src), "movsx $src, $dst", (MOVSX32rr8 GR32:$dst, GR8:$src)>; @@ -1266,6 +1270,35 @@ def : InstAlias<(outs GR32:$dst), (ins GR16:$src), "movsx $src, $dst", (MOVSX32rr16 GR32:$dst, GR16:$src)>; +def : InstAlias<(outs GR64:$dst), (ins GR8 :$src), + "movsx $src, $dst", + (MOVSX64rr8 GR64:$dst, GR8:$src)>; +def : InstAlias<(outs GR64:$dst), (ins GR16:$src), + "movsx $src, $dst", + (MOVSX64rr16 GR64:$dst, GR16:$src)>; +def : InstAlias<(outs GR64:$dst), (ins GR32:$src), + "movsx $src, $dst", + (MOVSX64rr32 GR64:$dst, GR32:$src)>; + +// movzx aliases +def : InstAlias<(outs GR16:$dst), (ins GR8 :$src), + "movzx $src, $dst", + (MOVZX16rr8W GR16:$dst, GR8:$src)>; + +def : InstAlias<(outs GR32:$dst), (ins GR8 :$src), + "movzx $src, $dst", + (MOVZX32rr8 GR32:$dst, GR8:$src)>; +def : InstAlias<(outs GR32:$dst), (ins GR16:$src), + "movzx $src, $dst", + (MOVZX32rr16 GR32:$dst, GR16:$src)>; + +def : InstAlias<(outs GR64:$dst), (ins GR8 :$src), + "movzx $src, $dst", + (MOVZX64rr8_Q GR64:$dst, GR8:$src)>; +def : InstAlias<(outs GR64:$dst), (ins GR16:$src), + "movzx $src, $dst", + (MOVZX64rr16_Q GR64:$dst, GR16:$src)>; +// Note: No GR32->GR64 movzx form. // TODO: lidtl/lidtq can be opcode aliases, perhaps others. |
